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Titel |
Modelling Mediterranean agro-ecosystems by including agricultural trees in the LPJmL model |
VerfasserIn |
M. Fader, W. von Bloh, S. Shi, A. Bondeau, W. Cramer |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1991-959X
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Digitales Dokument |
URL |
Erschienen |
In: Geoscientific Model Development ; 8, no. 11 ; Nr. 8, no. 11 (2015-11-05), S.3545-3561 |
Datensatznummer |
250116657
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Publikation (Nr.) |
copernicus.org/gmd-8-3545-2015.pdf |
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Zusammenfassung |
In the Mediterranean region, climate and land use change are expected to
impact on natural and agricultural ecosystems by warming, reduced rainfall,
direct degradation of ecosystems and biodiversity loss. Human population
growth and socioeconomic changes, notably on the eastern and southern shores,
will require increases in food production and put additional pressure on
agro-ecosystems and water resources. Coping with these challenges requires
informed decisions that, in turn, require assessments by means of a
comprehensive agro-ecosystem and hydrological model. This study presents the
inclusion of 10 Mediterranean agricultural plants, mainly perennial crops, in
an agro-ecosystem model (Lund-Potsdam-Jena managed Land – LPJmL): nut trees,
date palms, citrus trees, orchards, olive trees, grapes, cotton, potatoes,
vegetables and fodder grasses.
The model was successfully tested in three model outputs: agricultural
yields, irrigation requirements and soil carbon density. With the
development presented in this study, LPJmL is now able to simulate in good
detail and mechanistically the functioning of Mediterranean agriculture with
a comprehensive representation of ecophysiological processes for all
vegetation types (natural and agricultural) and in a consistent framework
that produces estimates of carbon, agricultural and hydrological variables
for the entire Mediterranean basin.
This development paves the way for further model extensions aiming at the
representation of alternative agro-ecosystems (e.g. agroforestry), and opens
the door for a large number of applications in the Mediterranean region, for
example assessments of the consequences of land use transitions, the
influence of management practices and climate change impacts. |
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